Perfect introduction by a croupier? (5)

I believe the answer is:

ideal

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'perfect' is the definition.
(similar in meaning)

I cannot understand how the remainder of the clue works.

(Other definitions for ideal that I've seen before include "Pattern" , "fine" , "Embodying perfection" , "Perfect; visionary" , "Utopian; yardstick" .)

I've seen this clue in The Guardian.

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